| 真空蒸镀法制备锡薄膜及其嵌锂电化学性能 |
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| 引用本文： | 张凯,白红美,程方益,陈军.真空蒸镀法制备锡薄膜及其嵌锂电化学性能[J].应用化学,2011,28(8):918-923. |
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| 作者姓名： | 张凯 白红美 程方益 陈军 |
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| 作者单位： | (南开大学新能源材料化学研究所,先进能源材料化学教育部重点实验室 天津 300071) |
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| 基金项目： | 国家自然科学基金(20873071); 天津应用基础及前沿技术研究(08JCZDJC21300)资助项目 |
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| 摘 要： | 采用真空蒸镀法在铜片基底上沉积锡薄膜作为锂离子电池负极材料，对所制备的锡薄膜采用扫描电子显微镜、X射线衍射表征，研究了其表面形貌和组成。 将制备的薄膜在手套箱中组装成CR2032型钮扣式电池，进行电化学测试，研究其电化学性能。 实验结果表明，在相同蒸发时间和基底温度的条件下，随着蒸发功率的增加，沉积的锡颗粒逐渐增大，相应的电化学性能降低。 以蒸发功率200 W、基底温度150 ℃制得的样品粒径为100~200 nm，含有Cu6Sn5合金相，以0.2C倍率充放电循环20周后放电容量达527 mA·h/g。
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| 关 键 词： | 锡薄膜 真空蒸镀 锂离子电池 负极材料 |
| 收稿时间： | 2010-10-10 |
| 修稿时间： | 2010-11-10 |
Preparation of Sn Films by Vacuum Evaporation and Their Electrochemical Properties as Lithium-Storage Materials |
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| ZHANGKai,BAI Hongmei,CHENG Fangyi,CHEN Jun.Preparation of Sn Films by Vacuum Evaporation and Their Electrochemical Properties as Lithium-Storage Materials[J].Chinese Journal of Applied Chemistry,2011,28(8):918-923. |
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| Authors: | ZHANGKai BAI Hongmei CHENG Fangyi CHEN Jun |
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| Institution: | (Institute of New Energy and Material Chemistry,Key Laboratory of Advanced Energy ;
Materials Chemistry-Ministry of Education,Nankai University,Tianjin 300071) |
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| Abstract: | Sn thin films on Cu foil substrate were prepared by vacuum evaporation and investigated as the anode materials of rechargeable lithium-ion batteries.The surface morphology and composition of the as-prepared films were characterized by scanning electron microscopy(SEM) and X-ray diffraction(XRD).The electrochemical performance of the film electrodes was measured using CR2032 coin-type cells.The experimental results show that the deposited films are composed of nano/micro particles,which are enlarged with inc... |
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| Keywords: | tin film vacuum evaporation lithium-ion battery anode material |
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